论文标题
宇宙学明显范围的温度估计：一种新方法
Estimation of temperature of cosmological apparent horizons: a new approach
论文作者
论文摘要
我们考虑了在双记号坐标设置中，在Friedmann-Lemaitre-Robertson-Walker（FLRW）模型的宇宙学明显范围内的辐射。由于时空是动态的，因此没有及时的杀伤向量，因此，我们的Kodama向量是动态时间。我们在整个地平线上构建了科达玛矢量的正频率模式。当信号从外部越过时，信号到达中心观察者的条件概率给出了与地平线相关的温度。
We consider radiation from cosmological apparent horizon in Friedmann-Lemaitre-Robertson-Walker(FLRW) model in a double-null coordinate setting. As the spacetime is dynamic, there is no timelike Killing vector, instead we have Kodama vector which acts as dynamical time. We construct the positive frequency modes of the Kodama vector across the horizon. The conditional probability that a signal reaches the central observer when it is crossing from the outside gives the temperature associated with the horizon.
